Sysmac OMRON NA Series, User Manual

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3 Installation and Wiring
3 - 2 NA-series Programmable Terminal Hardware User’s Manual (V117)
3-1 Processing at Power ON and Power
OFF
Precautions for Safe Use
Confirm the safety of the system before turning ON or OFF the power supply, or pressing the
reset switch.
The NA Unit will enter operation-ready status after the following time elapses once power supply starts.
 NA Unit Startup Time at Power ON
It takes approximately 30 seconds for the NA Unit to start up. The startup time is affected by the con-
tents of the project and the presence or absence of an SD Memory Card.
Observe the following precautions when power is interrupted.
Do not attempt to disassemble, repair, or modify the NA Unit. It may cause NA Unit to lose its
safety function.
Do not attempt to take the NA Unit apart and do not touch the product inside while the power
is being supplied. Otherwise it may result in electric shock.
3-1-1 Power ON Operation
Operation until Operation Ready Status
3-1-2 Power OFF Operation
NA Unit operation may not be dependable for momentary power interruptions.
Implement countermeasures for momentary power interruptions at the power supply.
Precautions for Power Interruptions
Item Description
SD Memory Card access in prog-
ress Any write data may be lost.
Transferring the project or other
data in process The operation is interrupted. As a result, an error will occur the next time that
the power is turned ON. Transfer the data again.
WARNING
WARNING